I'm so glad you posted your post and it doesn't surprise me that it's a bit of an issue to you.

Last Christmas break, my partner and I took about 2 weeks to travel around New Zealand (we are in Australia) - every city we went to, I hired a bike and did a morning ride of at least 40 mins. I'm fairly new to riding (only "seriously" riding for about the last 18 months) but used the excuse that I had an organised ride to do shortly after I got back, to keep riding everyday. Fortunately, my partner (who doesn't ride at at all) was very encouraging of me keeping up my new found fitness. Despite all the Christmas cake, turkey and general eating I didn't put on any weight, thanks to the riding. Anyway, to get to the point - I'm glad to see someone else just as concerned about being away from the regular routine of the bike. Yes, bike riding is addictive, but at least is a positive addiction!

I can't jog as I have bad knees, but if you can, I'd just keep up the general fitness by jogging. Your "bike legs" should probably come back soon enough. Otherwise, if you really miss it and its possible maybe hire a bike for some of the time you are away? It can be a bit of a hassle, but if you are into early morning rides, it can be a great way to see a new place!